nmaguiar/slon

Single Line Object Notation

SLON

Introduction

SLON (Single Line Object Notation) is a small modification to JSON (JavaScript Object Notation) to make it easier, and less painfull, for humans to quickly read data on a single line (e.g. on a notification, on a small text line, etc...). In a sense it's like YAML but in a single line.

Example of a weather notification using SLON:

The current conditions are (condition: Moderate Rain, temp: 12.2, feelsLike: 14, sunLight: true, date: 2023-02-05/12:34:45.678)

The same using JSON:

The current conditions are {"condition":"Moderate Rain","temp":12.2,"feelsLike":14,"sunLight":true,"date":"2023-02-05/12:34:45.678"}

Changes from JSON

The following table presents the changes from JSON:

Type	JSON delimiter	SLON delimiter
Map begin	{	(
Map end	}	)
Array values delimiter	,	|

Additionally:

• dates are simplified from 1234-12-24T12:34:56.123Z to 1234-12-24/12:34:56.123
• map keys don't need to be quoted unless they contain ":" or quotes
• string values don't need to be quoted unless they contain "," or quotes
• preferable use single-quote instead of double-quote

Example with all types

In SLON:

(number: 123.12, boolean: true, null_value: null, array: [1 | 'item' | 3], map: (x: -1, y: 1), date: 1235-01-17/12:34:56.123)

In JSON:

{"number":123.12,"boolean":true,"null_value":null,"array":[1,"item",3],"map":{"x":-1,"y":1},"date":"1235-01-24T12:34:56.123Z"}